ORBECO SP600, Instruction Manual, Page: 18 / 334

16 SP600 Spectrophotometer 01/2008
1.1 Methods
Alkalinity-p = p-value
with Tablet
5 – 300 mg/l CaCO
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1. Fill a clean vial (24 mm Ø) with
10 ml of the water sample
,
close tightly with the cap.
2. Place the vial in the sample chamber making sure that
the marks are aligned.
3. Press ZERO key.
4. Remove the vial from the sample chamber.
5. Add
one ALKA-P-PHOTOMETER tablet
straight
from the foil to the water sample and crush the tablet
using a clean stirring rod.
6. Close the vial tightly with the cap and swirl several
times until the tablet is dissolved.
7. Place the vial in the sample chamber making sure that
the marks are aligned.
8. Press TEST key.
The result is shown in the display as Alkalinity-p.
prepare Zero
press ZERO
Zero accepted
prepare Test
press TEST
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